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Description
Astilbe Grandis, also known as Giant Astilbe, is a beautiful and easy-to-care-for perennial plant that is native to Asia. It belongs to the Saxifragaceae family and is known for its feathery plumes of pink, red, or white flowers that bloom in the summer. The plant can grow up to 5 feet tall and has a spread of 2 to 3 feet. Astilbe Grandis is a great choice for any garden due to its low maintenance and ability to thrive in a variety of conditions.
Taxonomic Information
| Domain: | Eukarya |
| Kingdom: | Plantae |
| Phylum: | Spermatophyta |
| Class: | Angiospermae |
| Order: | Saxifragales |
| Family: | Saxifragaceae |
| Genus: | Astilbe |
Appearance
Astilbe Grandis has dark green, glossy foliage that grows in a mound-like shape. The leaves are deeply dissected and can reach up to 2 feet in length. The plant produces tall, upright stems that are topped with feathery plumes of flowers in shades of pink, red, or white. The flowers bloom in the summer and can reach up to 2 feet in length. Astilbe Grandis is a stunning addition to any garden and is sure to add a pop of color to your landscape.
Care Guide
Astilbe Grandis is a low maintenance plant that is easy to care for. Here are some tips for caring for your Astilbe Grandis plant:- Water: Astilbe Grandis prefers moist soil, so be sure to water it regularly. Keep the soil consistently moist but not waterlogged.- Fertilization: Fertilize your Astilbe Grandis plant in the spring with a slow-release fertilizer.- Soil: Astilbe Grandis prefers well-draining soil that is rich in organic matter. Amend your soil with compost or other organic matter before planting.- Sunlight: Astilbe Grandis prefers partial shade to full shade. Plant it in an area of your garden that receives dappled sunlight or shade.- Hardiness Zones: Astilbe Grandis is hardy in USDA zones 3-8.
Common Pests & Diseases
Astilbe Grandis is generally a pest and disease-free plant. However, it is susceptible to powdery mildew, which can be prevented by providing good air circulation around the plant. Other common pests that may affect Astilbe Grandis include slugs and snails, which can be controlled with organic slug bait.
Habitat
Astilbe Grandis is native to Asia and can be found growing in moist, shady areas such as forest floors, stream banks, and marshes. It prefers moist soil and partial to full shade.
Question and Answer
Q: Can I grow Astilbe Grandis in a container?
A: Yes, Astilbe Grandis can be grown in a container as long as the container is large enough to accommodate its root system and the soil is kept consistently moist.
Q: Can I divide my Astilbe Grandis plant?
A: Yes, Astilbe Grandis can be divided in the spring or fall. Simply dig up the plant and separate the root ball into smaller sections, making sure each section has several healthy shoots. Replant the sections in well-draining soil and keep them consistently moist until they become established.
Q: How often should I fertilize my Astilbe Grandis plant?
A: Fertilize your Astilbe Grandis plant once a year in the spring with a slow-release fertilizer. Be sure to follow the manufacturer’s instructions for application rates.
Q: Can I grow Astilbe Grandis in full sun?
A: Astilbe Grandis prefers partial to full shade and can become stressed and wilt in full sun. If you must plant it in a sunny location, be sure to provide plenty of moisture and shade during the hottest parts of the day.
Related Plants
– Astilbe ‘Bridal Veil’- Astilbe ‘Deutschland’- Astilbe ‘Fanal’- Astilbe ‘Purple Candles’- Astilbe ‘Red Sentinel’
References
– Missouri Botanical Garden. (n.d.). Astilbe Grandis. Retrieved from https://www.missouribotanicalgarden.org/PlantFinder/PlantFinderDetails.aspx?taxonid=277013&isprofile=0& – University of Illinois Extension. (n.d.). Astilbe. Retrieved from https://extension.illinois.edu/astilbe/
